package com.zsy.iweb.controller;

import com.alibaba.fastjson.JSON;
import com.zsy.iweb.service.OrderService;
import com.zsy.iweb.service.ProductService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.cloud.netflix.ribbon.RibbonClient;
import org.springframework.cloud.netflix.ribbon.RibbonClients;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import com.zsy.iweb.pojo.Order;
import com.zsy.iweb.pojo.Product;

@RestController
@Slf4j
public class OrderController {
    @Autowired
    private RestTemplate restTemplate;
    @Autowired
    private OrderService orderService;
    @Autowired
    private ProductService productService;
    @Autowired
    private DiscoveryClient discoveryClient;

    //准备买1件商品
    @GetMapping("/order/prod/{pid}")
    public Order order(@PathVariable("pid") Integer pid) {
        log.info(">>客户下单，这时候要调用商品微服务查询商品信息");
        //从nacos中获取服务地址
        /*ServiceInstance serviceInstance = discoveryClient.getInstances("service-product").get(0);
        String url = serviceInstance.getHost() + ":" + serviceInstance.getPort();*/

        //还可以直接通过微服务的名字，从nacos中获取服务地址
        /*String url = "service-product";
        log.info(">>从nacos中获取到的微服务地址为:" + url);*/
        //通过restTemplate调用商品微服务
        /*Product product = restTemplate.getForObject(
                "http://" + url + "/product/" + pid, Product.class);//可以随时根据service-product的地址变化而改变了*/

        //使用Fegin进行查询
        Product product = productService.findByPid(pid);
        log.info(">>商品信息,查询结果:" + JSON.toJSONString(product));
        Order order = new Order();
        order.setUid(1);
        order.setUsername("测试用户");
        order.setPid(product.getPid());
        order.setPname(product.getPname());
        order.setPprice(product.getPprice());
        order.setNumber(1);
        orderService.save(order);
        return order;
    }
}

